True or false? a well oiled machine has no friction

The maximum restoring force that can be applied to the disk without breaking it is 40000 n. what is the maximum oscillation amplitude that won't rupture the disk

Which is an example of convection? In a mountain forest, the sun heats up the ground. On a hot day, Amaya pours water on her face to cool off. At the beach, Stephan's feet get hot walking across the sand.

Explain how the theory of the Sun's dynamo results in an average 22-year solar activity cycle. Include the location and mechanism for the dynamo.

Would you expect the air pressure in a valley thats below sea level to be higher or lower than the air pressure at sea level

A probe orbiting Venus exerts a gravitational force of 2.58 * 103 N on Venus. Venus has a mass of 4.87 * 1024 kg. The mass of the probe is 655 kilograms.

Which of the following statements best describes the current state of understanding regarding the apparent acceleration of the expansion of the universe?

Should young people be allowed to do extreme sports? (give me two reasons why) 1. Opinion: 2. Reason why: 3. Reason why:

A light ray is incident on a reflecting surface. If the light ray makes a "35°" angle with respect to the normal to the surface, what is the exact angle (in degrees) made by the reflected ray relative to the normal?

Reimbursement means that a client is A. able to apply for healthcare insurance and refunded for a partial sum of the payment plan by the state. B.

Meg runs a 10km race in 45 minutes (0.75 hours). What was her speed in kilometers per hour? a. 22 km/hr b. 7.5 km/hr c. 4.5 km/hr d. 13 km/hr